Monte Carlo simulation of low temperature phase diagrams of YBa2Cu3O6+x

Khanna, Rita and Welberry, TR and Ananthakrishna, G (1992) Monte Carlo simulation of low temperature phase diagrams of YBa2Cu3O6+x. In: Physica C: Superconductivity, 197 (1-2). pp. 57-63.

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Abstract

We report the results of Monte Carlo simulation of oxygen ordering in the oxygen deficient portion (x<0.5) of YBa2Cu3O6+x at low temperatures. We find qualitative agreement among cluster - variation, Monte Carlo and transfer matrix methods. However, low temperature and ground state simulations clearly indicate the presence of a tetragonal phase. There is also evidence for two second order phase transition lines separating the tetragonal and the �double cell� ortho II phase. The effect of decreasing the inter-chain repulsion on oxygen ordering has also been investigated.

Item Type:	Journal Article
Publication:	Physica C: Superconductivity
Publisher:	Elsevier science
Additional Information:	Copyright of this article belongs to Elsevier science.
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	05 May 2011 05:50
Last Modified:	05 May 2011 05:50
URI:	http://eprints.iisc.ac.in/id/eprint/37257

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